Out of action for nearly a year, American midfielder Freddy Adu is on trial with German 2. Bundesliga club FC Ingolstadt.

Adu, 21, joined the squad on their winter training camp in Turkey on Wednesday and took part in the team's practice game against Kickers Offenbach on Thursday.

The former Benfica man was used as a second-half sub for Ingolstadt as the team beat Offenbach 1-0.

"Freddy had one training [session] and one half at the game against Offenbach so far," Ingolstadt press officer Oliver Samwald, told YA. "It will take a few more days to see if he can make it. He had a few good moments at that game and showed his skill and quickness."

"We have one more game on Saturday against Gaziantepspor of the Turkish top division," he added.

Ingolstadt has struggled so far this season in Germany's 2. Bundesliga, and entered the winter break next-to-last in the standings currently occupying one the league's two automatic relegation spots.

Their struggle to keep afloat in Germany's second tier has focused their search for additions to the team, which will undoubtedly be the crucial factor in any future Adu might have with the Bavarian club.

"We are searching for an offensive player with experience and scoring qualities, but I cannot give you any prognosis if Freddy is the right player at the moment."

"The most important requirement for the new offensive man is to get one player who can be there immediately and not somebody who has to adapt, since we are second from last place in the league and must really improve in the first game already," Samwald continued.

"Therefore it could be difficult and we have to see if it's possible with Freddy. Maybe he has to learn the language, adapt to the way of playing in Germany and all of those issues. So this could be a problem, therefore it's important to see after the whole week if he's the right player," he concluded.

Adu will be with Ingolstadt until Sunday, at which point the team will decide about whether to keep the 21-year-old or not.

Ingolstadt is currently struggling and is in second to last place in the 2. Bundesliga. If added to the roster, Adu would join fellow American Amaechi Igwe.

Having undergone an ultimately unsuccessful trial at Swiss club FC Sion during the summer transfer window, the former U-20 star has been in search of playing opportunities since loaning club FC Aris deemed him surplus to requirements prior to the current season.

With parent club SL Benfica also having shown no desire to include Adu in their future plans, he had a short training stint in December with Danish team Randers FC, however his short time with the team did not lead to any interest to join their roster.